Procedure. The recruitment of families will be done by the Kobi Mandel Foundation, which is involved in helping families that have been victims of terror. The Foundation will not approach families who fit the criteria of ineligibility for the study, as described in the previous paragraph. The parents will fill out a form of informed consent on their own behalf, and on behalf of their children who are under the age of 18, after they have received an explanation about the procedure of the study, and have been given an opportunity to ask questions about it. Teenagers over 14 years old will sign a form of informed consent, with parental permission. Family members over the age of 18, living at home, will fill out a form of informed consent on their own behalf.